Engine



ENGINE Original Filed Nov. 25, 1930 2 Sheets-Shet 1 Patented Apr. 18, 1 933 JAMES L. KEMITHORNE, or mon'rcmun, NEW JERSEY ENGINE Application filed November 25, 1930, Serial No. 497,980. Renewed August 26, 1932.

This invention relates to an improved inventionwhich' is adapted for various purposes but I particularly describe the engine as designed for a pump or compressor.

The object of the invention is to provide an engine of this kind which is of large capacity for its size and which is made up of few parts and which is positive in its'action.

The-invention is illustrated in the accompanyingdrawings in which Figure 1 is 'a longitudinal section of apump made accord- .ing ,to my invention. Figure 2 is a perspective view of" interior working 'parts' of the pump andFigure 3 is a modified form illus- 15 trating the engine as designed as a compressor. V

Referring to the pump construction shown in Figure 1 it comprises a casing which is usually made of'twosections, one fitting o ontop of theother, and'in the'casing'is a spherical-chamber 11; Partly occupying'the spherical chamber is a segmentalv abutment 12 having-divergent flat faces 13. This abutment member,'through the operation of the pump to be hereinafter described, must have a slight oscillating movement. To provide for this I secure the abutment member'to' a ring 14 which can oscillate in the casing and to make this oscillation easy Imay provide 0 suitable anti-friction bearings suchas the balls 15 in the ball race 16. I show the screws 17 as the'means for'fastening the abutment member to the ring 14:. Opposed to the abutment member 'is a" semi-spherical mem ber 18 which includesa face plate 19' in rear of which the member 18 rotates and having a flatinclined face inclined relative to theaxis of rotation. The face of it has an action similar to that of a wobble plate to fwhichthe face plate 19 conforms. .However, itheface late 19 does 'not rotate but oscillates on each side of the centre of rotation and moves to and fro relative to thefaces 13 of'the' '50 termed a vertical plane it oscillates slightly in a horizontal plane with the abutment member 12 and for this purpose is preferably mounted in the ring 14 by the pins or trun nions 23. Suitable anti-friction devices such 7 p as the balls 24 may be inserted between the face plate 19 and themain part 18 of the semi-spherical member. The semi-spherical member is mounted on a shaft 25 rotating in suitable bearings 26 and projecting toward the outside of the casing as a means for oper- 59 ating the pump-and secured at its innerv end to the member 18 in anysuitable way.

The pump is provided with inlet and outlet valves these being arranged side by side and V, properly disposed and I show in the drawing the outlet ports 27 provided with suitable Valves 28 to allow the escape of fluid and it will be understood that the inlet ports are similarly disposed and-constructed and are ,7 provided with inlet'valves. Suitable cooling chambers 29 may. be provided for use of water to keep the engine cool. For lubrication I provide an oil chamber 30 in which the oil is introduced through 1 a suitable opening 31. An oil duct 32 carries oil to the bearings 26 and the ball bearings 15 can be supplied with oil through the ducts 33. The duct 32 communicates with a'duct 34 in the end of the shaft which communicates with a duct'35 in the member 18 which sup- 89 plies a lubricant between its members 18 and 19 and the channel 36conveys oil to the outer surface of the sealing strip. The face plate 19 may be provided with suitable piston rings 'In Figure 1, I show the upper half of the chamber 11 as being open and the lower one as being closed and it will be evident that on a half rotation of the shaft 25 that'the upper chamber will be closed andthe lower chamber 90 will be open. In this way each complete rotation of the shaft 25 opens and closeseach of the chambers so that one of the'compart ments draws in and then expels through its valves the capacity of the half of the chamber 1'1 oneach of such rotations.

In order to insure the lubrication of-the I parts I provide a channel from an outlet port 27 to the top of the, oil chamber. In the drawings this channelis representedby-the' pipe 38 which connects at one end through a duct 39 with the exhaust port of the engine and through the duct 40 with the top of the oil chamber so that enough pressure is delivered above the oil to force it into the several parts of the engine to be lubricated.

In Figure 3 I show a similar construction with modifications suflicient to show its use as a compressor and in which the rotating and oscillating semi-spherical member closes and opens the inlet and outlet ports. The inlet ports are shown at 11 and 42. The outlet ports are shown at 43 and 44:. Correspondingly arranged ports for completing the ex-i haust ports are shown at 45 and 46 in the face plate 19. The member 18 which rotates in rear of the face plate has a single port 47 that in the rotation of the member 18 connects first the ducts 43 and 45 and then on a half rotation connects the ducts 1 k and 46, this connection being completed as the face plate approaches the face 13 of the abutment member on that half or part of the engine.

its the inlet ports 41 and 42 are arranged on the ends of the chambers or half chambers away from the abutment member they are opened alternately by the semi-spherical member at the end of the suction or opening position for that half chamber. For .instance, in full lines in Figure 3 the upper half chamber a is open to the inlet 41 and the lower half chamberris cut olf from the inlet 42 by the semispherical member 18 but the outlet 44 is connected to the outlet 46 through the channel 47 and the compressed air or fluid is ejected.

On a half rotation the parts would assume a position shown in dotted outline in Figure 3 and the chamber a would be closed as is the lower chamber in full lines and the lower chamber would be open as shown in dotted lines and exhaust channel 47 would connect the outlet ports 43 and 45. It will be seen that an engine of large capacity is capable of easy operation and can be utilized after a pump compressor has been produced,

' Various changes can be made in the position and form'of the parts without departing from the scope of the invention.

I claim:

1. 'An engine comprising a casing having a spherical chamber therein, a segmental abutment mounted to oscillate in the chamher, and a semisph-erical member rotatable in the chamber opposite the abutment and in contact therewith across the centre whereby the abutment is caused to oscillate when the member rotates.

2'. An engine comprising a casing having a spherical chamber therein, a segmental abutment with flat faces and mounted to oscillate in the chamber, and a semi-spherical member rotatable in the chamber opposite the abutment and having an inclined face which is in contact therewith across the centre, said member including a face plate providing said contact and in the rear of which the balance of the member rotates. i

3. An engine comprising a casing having a spherical chamber therein, a segmental abutment mounted to oscillate in the chamher, and a member rotatable in the chamber opposite the abutment and having an inclined face which is in contact therewith across the centre and a shaft secured to the member and projecting from the casing.

l. A pump or compressor comprising a casing having a spherical opening, a ring forming part Of the wall of the opening, an abutment secured to the ring and having faces diverging fr m, the cen re, a plate, a seal ng strip eng ging th cen e of he abutmen nd. he p at said plate fitting h opening, a shaft in the rear of the plate, and a rotatable member on the shaft a d he i g on the rear face of the plate, V

A p p or ompressor omprising a ng ha ing a spherical op ni g, a ring forming part of the. wall of the opening, a butment s cured to the ring, and having faces d verging from the ce tre, a plate a sealing s ip engaging he cent e o the a ut ment a d the plate and seated at its ends in the ng to per it the s rip to oscill te, sai

plate fitting the opening, a shaft in the rear of the plate, and a rotatable member on the shaf and bearing onthe rear faceof the Pla e- 7 6, A pump or c m ressor comp ising a casing ha ing a spher cal opening, a r ng forming part of the wall of said opening nd arranged to oscilla e, an abutment o segental sh pe secured to said ring, a plat ranged at ang e n said ope ing a sealing st ip between the cen e of the abutment and he c n e o the plate and with i endsi n the. ring so that it. can oscillate n a p an perp nd cular to the oscillation of the ring and be a ried by t e ring whe the ring 05- illateea sha t, and a tata l memb on the.

shaft and engaging the rea face ofthe plate;

An engine omprising a casing having a sphe ical, open ng the e n, abutment wi wo. fiat faces converging toward. he c nt e, said abutmen being rrang d o c ly oscillate in the opening, and a member opposite said abutment and having acontinuous fiat face i con -a t a ros ts c tre Wit -the central p rt o t e abutment,

8-. A. pump comprising a casing hav ng a spherical opening, a f eely mov ng abutment a ranged to. o il ate i e opening and having flat faces converging to the centre, a pla e having a continu u flat; cc n co tact acrossthe centre with the abutment, a-

rotatable membe'rin rear of the plate, said casing, p ate and rotatable member a ing openings to serve as ports at predetermined pgints in the rotationiot he otatable. meme 9. A machine of the kind described comprising a casing having a spherical opening therein, a shaft, a face plate operated from and at an angle to the axis of the shaft, an abutment opposite the face of the face plate, a ring to which the abutment is secured, said ring being mounted to permit itto oscillate and a sealing strip interposed between the 7 face plate and the abutment and supported by the ring to enable it to oscillate with the ring and relative thereto.

10. In a machine of the kind described, a casing having a spherical opening, a shaft, a face plate arranged at an angle in the shaft and fitting the opening, a ring arranged to oscillate, an abutment supported by the ring and opposite the face plate, and a sealing strip between the face plate and the abutment and adapted to oscillate'relative to the ring and to cause the oscillation of the ring in conformity with the movement of the face,

plate.

In testimony whereof he aflixes his signature.

JAMES L. KEMPTHORNE. 

